For example, the vast majority of people with memory loss do not have problems with a loss of self-identify (meaning that they know exactly who they are). In addition, sudden head trauma (such as that which may occur in a car accident) may cause some confusion or disorientation, but it rarely leads to amnesia.
Stroma is the thick fluid within the chloroplast. I think you mean 'Stroma'. Stroma can refer to two things in Biology. Stroma is the fluid inside chloroplasts, the site of photosynthesis in all plant cells. It is also, however, the framework (like a skeleton) inside any biological tissue, cell or organ.
The thylakoids are surrounded by the stroma, or the inner liquid portion of the chloroplast. Both the stroma and the thylakoids contain important molecules for photosynthesis. Thylakoids are often stacked on top of each other - they look like a stack of flapjacks. Grana, or singular 'granum,' are stacks of thylakoids within chloroplasts. The stroma surround the thylakoids